Portable copying-press



(No Model.)

H. M. HINSDILL.

PORTABLE COPYING PRESS. No. 326,651. Patented Sept; 22, 1885.

ATTORNEY Nrrr: Sra rns ATENT OFFIcE.

HENRY M. HINSDILL, OF GRAND RAPIDS, MICHIGAN.

PORTABLE COPYING-PRESS.

SPECIFICATION forming part of Letters Patent No. 326,651, dated September 22, 1885.

(N model.)

To all whom it may concern.-

Be it known that I, HENRY M. HINSDILL, a citizen of the United States, residing at Grand Rapids, in the county of Kent and State of Michigan, have invented certain new and useful Improvements in Portable Copying Presses, of which the following is a specification, reference being had therein to the accompanying drawings.

My invention relates to portable copying presses; and it consists in the construction and arrangement of the parts, which will be more fully hereinafter described, and pointed out in the claims.

The object of my invention to produce an improved copying-press, simple and inexpensive in construction, light and easy to handle, readily understood in its operation, convenient in its use, strong and durable, and certain in its results.

A further object of my invention is to provide a copying-press, easy of transportation, with which copying can be quickly and satisfactorily done, which shall not be heavy and cumbersome, requiring a stationary position on the wall or on a table or frame, nor yet so light as to be wanting in strength and in positive mechanical appliances, so as to be incapable of producing certain resultsat all times. These objects I accomplish by the device illustrated in the accompanying drawings, forming a part of this specification, in which like letters refer to similar parts, and in which Figure 1 is a perspective view of my improved copying-press with the cylinder-cap removed. Fig. 2 is a side elevation of the same, with the cylinder partly drawn out, showing the manner of arranging the copyingpapers thereon. Fig. 3 is a detail transverse sectional view of the upper portion of the pressure-shell, showing the screw-bearings.

A represents a hollow cylinder, having a cap, A, at one end, said cap being provided with a suitable clamping-strip, a, which acts to partially secure the said cap A in the end of its cylinder. The cylinder is made hollow for the purpose of forming a receptacle for copying-paper, blotters, and oiled pads, the said articles being rolled into a cylindrical form and placed therein. At ashort distance from each end of the cylinder, upon the outside thereof, a sheet of blotting-paper, a, is glued, and upon this covering another covering, a of suitable water-proof material, preferably sheet-rubber, is secured. These coverings prevent the cylinderfrom coming directly in contactwith the moistened paper, and also form a cushion to ease the pressure exerted thereon. Thecopying materials and papers from which copies are to be made are wound around this covered cylinder, as will be presently described. An elastic metal clampingshell, B, encircles the cylinder A and covers its entire circumference, with the exception of a small space at its upper portion. The upper edges of this shell B are flared, as at b, and are secured to binding strips B, formed of cast metal, by suitable rivets. In the central portions of these bindingstrips B journal-bean ing collars B are east, through which passes transversely a screw-shaft, O. As illustrated in Fig. 3, this screw-shaft has a hand-wheel, G, mounted on one end and a clamping-nut, c, on the other. The end of said shaft opposite the hand-wheel engages with the socketed portion of one of the bearing-collars B, being suitably keyed thereto, as at c, to prevent it from turning. In the other bearing-collar a clamping-collar, 0', cast integral with the shaft or rigidly secured thereto, is seated,and turns in the sockcted portion thereof and acts to force its side of the shell B against the cylinder A, while the screw-threaded end of the shaft draws against the clampingnut c. The internal diameter of the socketed portions of the bearing-collars B is somewhat greater than that of the shaft C, and thereby a free movement of the nut c and collar 0 is obtained. By this construction the shaft 0 is permitted to work freely at whatever angle the flared portions 1) of the shell B may be brought in the operation of the press. The shell is provided at its lower opposite sides with feet D D, which support the same upon any suitable stand.

The operation of my improved device is as follows: A rectangular piece of cloth, preferably felt, long enough to enwrap the cylinder one or more times and wide enough to cover the water-repellent material thereon, is laid out flat its full length, and on this cloth, flush with one of its sides, a long blotting-sheet is ICO placed. Upon this long blotter a shorter blotter is placed, which should be about the dimensions of the copying-paper. A sheet of moistened copying-paper is placed upon this last blotter, but not moistened to such a degree that the water will drip therefrom. The writing to be copied is placed upon the moist ened copying-paper, and another short-blotter placed upon the back thereof. The copying material, arranged as above described, is then snugly rolled around the cylinder A, which has been previously removed from the pressure-shell B, so that it will not slip and blur the written matter to be copied. The cylinder A, with the copying material thereon, is then placed in the shell B, and pressure is applied by operating the screw-shaft O. The cylinder is allowed to remain in the press about one minute, and isthcn released from pressure and removed, when the written matter and its copy can be unrolled from the cylinder. One or more copies of the written sheet can be taken, as desired. Oiled pads may be used in the same manner as they are used in the ordinary form of copying-presses, being rolled round. the cylinder A in the same way that the blotters are applied. This press may be of any required size, and is adapted to rest on a table, stand, or bracket, or maybe removed from one place to another. The felt covering forms a cushion between the blotters and the shell B, and pro tects the same from any moisture which might otherwise soak through the outside blotters while under pressure.

It is obvious that many minor mechanical changes may be made and substituted for those shown and described without in the least departing from the nature and principle of my invention.

'Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In aportable copying-press, the combination of a hollow cylinder and a pressure shell inclosing said cylinder, substantially as described.

2. In a portable copying-press, the combination of a hollow cylinder, a pressure-shell inclosing said cylinder, substantially as described, and means for clamping said shell around the cylinder, for the purposes set 5 forth.

3. In a portable copying-press, the combination of a hollow cylinder upon which copying materials may be placed, an elasticmetal pressure-shell inclosing said cylinder, a screwshaft for clamping the cylinder, and means for supporting the press, substantially as described.

4. In a portable copyingpress, the combination of a hollow cylinder upon which the copying materials may be placed, an elastic metal pressure-shell inclosing said cylinder, binding-strips on the upper flared ends of said shell, having journal-bearing collars therein, a partially screw-threaded shaft having a hand-wheel operating said journal collars, a suitable clamping-nut and stationary collar engaging said shaft and seatedin the socketed portions of the journalcollars, and means for supporting the press, substantially as described. I a v 5. In a portable copying-press, the combinak tion of a hollow cylinder havingawater-proof sheet secured thereto upon which the copying materials may be placed, and having one end open and fitted with a cap, an elastic metal pressure-shell partially 'inclosing said cylinder, and having flared extensions at the upper end thereof, and binding-strips having socketedjournal-collars therein, a transverse shaftscrew threaded at one end passing through the journal-collars, a ball loc'k-nutkeyed to one of thejonrnal-collars, a clamping-collar integral with or secured to the plain surface of the shaft, and means for supporting the press, substantially as described, and for the purposes specified. I

6. In a portable copying-press, the combination of the hollow cylinder A, having a blotter, a, and a waterproof covering, a, a cap, A, fitting one open end of the cylinder, an elastic metal pressure-shell, B, the binding-strips B, journalbearing collars B shaft 0, having a hand-Wheel, G, nut 0, col-1 lar c and the feet D D, for supporting the press, substantially as described. I 4

In testimony whereof I affix my signature in presence of two witnesses.

HENRY M. HINsD LL- Witnesses:

WESLEY W. HYDE, J OHN ll/IOQUEWAN. 

